Author/Authors :
Waheed, Abdul Hazara University - Genetics Department, Pakistan , Ahmad, Habib Hazara University - Department of Genetics, Pakistan , Abassi, Fida M. Hazara University - Department of Genetics, Pakistan , Hamid, F.S. National Tea Research Institute Shinkiari, Pakistan , Shah, A.H. Hazara University - Genetics Department, Pakistan , Ali, Hamid Hazara University - Department of Genetics, Pakistan , Ahmad, Fayaz National Tea Research Institute Shinkiari, Pakistan , Ahmad, Naseer Pakistan Agricultural Research Council - Crop Sci Div, Pakistan
Abstract :
Study was conducted at Genetics Department of Hazara University (KPK) Pakistan, to develop. Genetic Interspecific materials derived from successful crossing of the two cultivated rice species Oryza sativa and Oryza rufipogon were intercrossed to find out their level of cross-compatibility and the extent of sterility in the Bas- 385 and Fakhar Malakand. All hybrids were partially sterile and showed significant differences in their seed set (0.6 to 33.09%). Pollen fertility tests indicated reduced pollen viability in the hybrids. Seed set was improved (up to 65%) when hybrids were backcrossed to either parent. Within the selected O. sativa improvement could therefore be possible through conventional crosses and best through backcross breeding. However O.longistaminata was not synchronize completely with Oryza sativa because of late booting and flowering. Only cross 1 2 (F. Malakand) formed 2 grains but it was not sure to either it will be fertile or not
